Update 3.1.7 and Letsecrypt path

Hi,
i viewed the closed Issues and new Features came with 3.1.7 and ask myself for what is the new Path "/opt/eff.org/certbot/venv/bin/certbot" for Lets Encrypt (#4785). Where is it for and how to use it?

This is the new default location where certbot installs its files, so nothing ISPConfig specific, we just had to react on their decision to do new installs in a different folder. That's nothing that you use, it's just a search path for a software.